Jogging apparatus for wire working machines



March 15, 1960 B. E. FRANKENFIELD' 2,928,527

JOGGING APPARATUS FOR WIRE WORKING MACHINES Filed Aug. 26, 1957 United States Patefit JOGGING APPARATUS FOR WIRE WORKING MACHINES Bruce E. Frankenfield, Chicago, Ill., assignor to Western- Electric Company, Incorporated, New York, N.Y., a corporation of New York Application August 26, 1957, Serial No. 680,326

1 Claim. (Cl. 205-16) This invention relates to jogging apparatus and more particularly to an apparatus for facilitating intermittent I operation of wire working machines.

When wire drawing machines are operated in tandem with annealing machines and plastic extruders, it is necessary to string the end of each new reel of wire through a plurality of drawing dies and around numerous sheaves which are spaced over a considerable distance. In the past, two operators have been required to perform this operation; one stringing the end of the wire around'the various sheaves and the other jogging the wire drawing machine to provide incremental lengths of wire as they were required by the first operator. Manifestly, it would be desirable to provide some means by which the stringing operation could be accomplished by one operator.

It is therefore a primary object of this invention to provide an apparatus which will permit a single person to string wire tln-ough a tandem line of wire working machines.

It is another object of this invention to provide an apparatus which will permit an operator to jog a wire drawing machine without removing either of his hands from the wire being strung.

It is a further object of this invention to provide an apparatus which will jog a wire drawing machine in response to tension in the wire at the exit end of the machine.

With these and other objects in view, the present invention contemplates a wire drawing machine provided with a drive motor therefor and a switch operable by a movable wire guide in response to increased tension in the wire being strung for energizing the drive motor.

Other objects, advantages and novel features of the invention will become apparent upon consideration of the following detailed description in conjunction with the accompanying drawing wherein the single figure illustrates a wire drawing, annealing and insulating apparatus in which the present invention has particular utility.

Referring now to the drawing there can be seen an insulated wire manufacturing line formed of the following 11 comprises a plurality of capstans 8 and a wire drawing die 9 is provided with a drive motor 17 which is adapted to be energized by power lines 18 through normally-open contacts 19 of a relay 20. The relay 20 is connected across the power lines 18 by means of lines 22 and 23. I

A button 24 is provided on the wire drawing machine and is adapted to close contacts 25 when depressed to energize the relay 20. Anarrn 26 is pivoted on the drawing machine at 27 and carries a wire guide or sheave 29 on the free extremity thereof. The arm 26 is adapted to actuate a switch 30 to close the contacts 31 and energize the relay 20 to operate the motor 17 to feed wire. A spring 32 is provided to normally-hold the arm 26 away from the switch 30. A selector switch 33 is provided in the line 23 to bypass the contacts 25 and 31 when it is desired to run the'line continuously.

Operation In order that a better understanding of the invention may be had, its mode of operation will now be described. A reel of wire 35 is first placed in the supply stand 10 and the free extremity of the wire 36 is passed around the sheave 37 and into the wire drawing die 9 of the wire drawing machine 11. The selector switch 33 is then moved to the jog position to apply electrical potential to the junction 39. The operator then begins stringing the wire 36 through the wire drawing machine 11. Once the extremity of the wire has been wrapped about the first capstan in the drawing machine, the operator can feed additional lengths of wire as required by depressing the button 24 with his 'knee. This closes contacts 25 to energize relay 20 which applies electrical potential to the drive motor 17 through the contacts 19. When suflicient wire has been fed, the operator can stop the feed of wire simply by releasing the button 24. Provision of the knee actuated button 24 permits the operator to have both hands free for the stringing operation at all times. This process continues until the wire drawing machine has been completely strung.

The operator next passes the wire 36 over the sheave 29 and a sheave 40 and into the annealing apparatus 12. The wire 36 is then passed over and under the various .sheaves in the annealer 12 through the extruder 13 andwhich energizes the relay 20 and starts the motor 17. As

long as tension is maintained in the wire, the drawing machine will continue to feed. Thus the operator can obtain as much or as little wire as it desired without the need of a second man to jog the drive of the wire drawing machine.

When the line has been completely strung, the selector switch 33 is permitted to move to the run" position under the influence of a spring 41. 'This bypasses the contacts 25 and 31 and permits continuous operation of the wire drawing machine independent of the jogging switches.

It is to be understoodthat the above-described arrangements: are simply illustrative of the application of the principles of this invention. Numerous other arrangements may be readily devised by those skilled in the art which will embody the principles of the invention and fall within the spirit and scope thereof.

What is claimed is: I 1

An apparatus for intermittently operating a wire drawingrmachine comprising a power supply, a drive motor for said machine, a first manually operable switch for closing a first pair of contacts, a second switch having a pair of contacts in parallel with said first pair, a pivotally and responsive to variations in the tension in the wire exitingfrom the mfichine'formovin'gsaid'arm to actuate said second switch thereby closing said second pair of contacts, and a relay operable upon actuation ofsaid first or second switch and the closure of the associated pair of contacts for connecting the power supply to said drive motor. 7 V

Q hem-emcee in the file of this patent UNITED STATES YATENTS? Schroder -QIan. 23, 1940 Bogoslowsky Mar. 16, 1943 Corcoran Aug. 20. 1946 Andrea Mar. 4, 1958 i 

